Undead mounts (camel husks, zombie horses, zombie nautiluses and skeleton horses) monster spawners work on light level above 0, making it inconsistent with other night time monsters.
Steps to reproduce the issue:
Place a monster spawner and one of the four undead mounts on it on daylight.
Expected result:
It would never work on daylight, only working in nightime as the other monsters.
Actual result:
It does work.
How is this a duplicate of that bug? This is talking about monster spawners, the block, if anything its related, but not a duplicate.